Death risk higher for elderly women who lose weight, says University of Maryland School of Medicine study

Elderly women face an increased risk of death if they lose weight or are underweight, according to researchers at the University of Maryland School of Medicine. Elderly women of average weight who lose weight may be at greatest risk.

The six-year study, which appears in the December issue of The Journal of the American Geriatrics Society, involved 648 Baltimore area women between the ages of 65 and 99. The women were interviewed and weighed at their homes once a year for three years, and were followed for another three years.

The risk of death was highest for women with an average body mass index (BMI), who then went on to lose weight. These women were nearly four times more likely to die than women who either maintained their weight or gained a few pounds during the course of the study. A weight change of 4.5 percent or more from one year to the next was recorded as a gain or a loss.

"Our findings run contrary to the popular belief that losing weight always makes you healthier," says Matthew W. Reynolds, M.S., of the School of Medicine's Department of Epidemiology. "We believe doctors should pay close attention to weight change in older women because it could signal potentially serious health problems."

The risk of death was the lowest for elderly women who maintained an average BMI over the six-year study period. Thirteen percent of these women died, compared to the group's overall death rate of 16 percent. The death rate was 22 percent for elderly women who began the study with a lower than average body mass. For the heaviest women, the death rate was 18 percent.

"This work has some very important implications for older women and their health care providers because weight changes are relatively easy to monitor," says Jay S. Magaziner, Ph.D., professor and interim chair, Department of Epidemiology and Preventive Medicine and director of the division of gerontology at the University of Maryland School

Contact: Larry Roberts
University of Maryland Medical Center

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